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word右键怎么增加图片另存为( 二 )

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uEncParams.Count = 1’ 设置自定义的编码参数，这里为1个参数
If JpgQuality < 0 Then
JpgQuality = 0
ElseIf JpgQuality > 100 Then
JpgQuality = 100
End If
ReDim aEncParams(1 To Len(uEncParams))
With uEncParams.Parameter
.NumberOfValues = 1
.Type = EncoderParameterValueTypeLong’ 设置参数值的数据类型为长整型
Call CLSIDFromString(StrPtr(EncoderQuality), .GUID(0))’ 设置参数唯一标志的GUID，这里为编码品质
.Value = https://www.rkxy.com.cn/dnjc/VarPtr(JpgQuality)’ 设置参数的值：品质等级，最高为100，图像文件大小与品质成正比
End With
CopyMemory aEncParams(1), uEncParams, Len(uEncParams)
SaveStdPicToFile = (GdipSaveImageToFile(Bitmap, StrPtr(FileName), CLSID(0), aEncParams(1)) = 0)
End If
Case ImageFileFormat.Png
If Not GetEncoderClsID("Image/png", CLSID) = -1 Then
SaveStdPicToFile = (GdipSaveImageToFile(Bitmap, StrPtr(FileName), CLSID(0), ByVal 0) = 0)
End If
Case ImageFileFormat.Gif
If Not GetEncoderClsID("Image/gif", CLSID) = -1 Then’如果原始的图像是24位，则这个函数会调用系统的调色板来将图像转换为8位，转换的效果会不尽人意,但也有可能系统不自动转换，保存失败
SaveStdPicToFile = (GdipSaveImageToFile(Bitmap, StrPtr(FileName), CLSID(0), ByVal 0) = 0)
End If
End Select
End If
GdipDisposeImage Bitmap’注意释放资源
GdiplusShutdown Token’关闭GDI。
End Function
Private Function GetEncoderClsID(strMimeType As String, ClassID() As Long) As Long
Dim NumAs Long
Dim SizeAs Long
Dim IAs Long
Dim Info()As ImageCodecInfo
Dim Buffer()As Byte
GetEncoderClsID = -1
GdipGetImageEncodersSize Num, Size’得到解码器数组的大小
If Size <> 0 Then
ReDim Info(1 To Num) As ImageCodecInfo’给数组动态分配内存
ReDim Buffer(1 To Size) As Byte
GdipGetImageEncoders Num, Size, Buffer(1)’得到数组和字符数据
CopyMemory Info(1), Buffer(1), (Len(Info(1)) * Num) ’复制类头
For I = 1 To Num’循环检测所有解码
If (StrComp(PtrToStrW(Info(I).MimeType), strMimeType, vbTextCompare) = 0) Then’必须把指针转换成可用的字符
CopyMemory ClassID(0), Info(I).ClassID(0), 16’保存类的ID
GetEncoderClsID = I’返回成功的索引值
Exit For
End If
Next
End If
End Function
Private Function PtrToStrW(ByVal lpsz As Long) As String
Dim OutAs String
Dim LengthAs Long
Length = lstrlenW(lpsz)
If Length > 0 Then
Out = StrConv(String$(Length, vbNullChar), vbUnicode)
CopyMemory ByVal Out, ByVal lpsz, Length * 2
PtrToStrW = StrConv(Out, vbFromUnicode)
End If
End Function

For Each cbn In Array("AutoText", "Drawing Canvas", "Organization Chart", "Diagram", "Frames", "Flowchart", "Inline Picture", "Floating Picture", "Shapes", "Inline Canvas", "Table Pictures", "AutoShapes", "Basic Shapes", "Insert Shape", "Picture", "WordArt Context Menu", "WordArt")

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